A positive word for Hawkins Motors. They were very happy to let us use their rapids (free) for our Leaf on a trip to Cornwall. I can vouch for their outstanding customer service. A family -run company and lovely people...
I used Mary Arches myself last week. one space ICEd, other fine: Level B.
I have used John Lewis several times. Chargers on Level B.
Will check Guildhall tomorrow (it's next door almost to Mary Arches).